1065663345 has 16 divisors (see below), whose sum is σ = 1708463232. Its totient is φ = 567219840.

The previous prime is 1065663329. The next prime is 1065663359. The reversal of 1065663345 is 5433665601.

It is a happy number.

It is not a de Polignac number, because 1065663345 - 2⁴ = 1065663329 is a prime.

It is a super-2 number, since 2×1065663345² = 2271276729753178050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63076 + ... + 78165.

It is an arithmetic number, because the mean of its divisors is an integer number (106778952).

Almost surely, 2^1065663345 is an apocalyptic number.

1065663345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1065663345 is a deficient number, since it is larger than the sum of its proper divisors (642799887).

1065663345 is a wasteful number, since it uses less digits than its factorization.

1065663345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141752.

The product of its (nonzero) digits is 194400, while the sum is 39.

The square root of 1065663345 is about 32644.4994600928. The cubic root of 1065663345 is about 1021.4254531713.

The spelling of 1065663345 in words is "one billion, sixty-five million, six hundred sixty-three thousand, three hundred forty-five".